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31330010030 = 2511674251019
BaseRepresentation
bin11101001011011010…
…100000001110101110
32222212102221102010212
4131023122200032232
51003130440310110
622220502502422
72156246456054
oct351332401656
988772842125
1031330010030
1112317a79280
1260a4434a12
132c53aa9797
141732d3c1d4
15c35795e05
hex74b6a03ae

31330010030 has 32 divisors (see below), whose sum is σ = 62438981760. Its totient is φ = 11222687520.

The previous prime is 31330010029. The next prime is 31330010069. The reversal of 31330010030 is 3001003313.

It is a junction number, because it is equal to n+sod(n) for n = 31330009987 and 31330010014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2118140 + ... + 2132879.

It is an arithmetic number, because the mean of its divisors is an integer number (1951218180).

Almost surely, 231330010030 is an apocalyptic number.

31330010030 is a deficient number, since it is larger than the sum of its proper divisors (31108971730).

31330010030 is a wasteful number, since it uses less digits than its factorization.

31330010030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4251104.

The product of its (nonzero) digits is 81, while the sum is 14.

Adding to 31330010030 its reverse (3001003313), we get a palindrome (34331013343).

The spelling of 31330010030 in words is "thirty-one billion, three hundred thirty million, ten thousand, thirty".

Divisors: 1 2 5 10 11 22 55 67 110 134 335 670 737 1474 3685 7370 4251019 8502038 21255095 42510190 46761209 93522418 233806045 284818273 467612090 569636546 1424091365 2848182730 3133001003 6266002006 15665005015 31330010030